Experimental Simulation of River Transformation and Development

摘要：

　　The formation and transformation of river patterns is one of the basic problems of river evolution. First, on microscopic scales, this paper analyzed the causes of meandering rivers and put forward the influencing factors of different river patterns on the basis of extensive research. Second, through large flume experiment, this paper studied the developed process of sediment deposition area with river formation and made four following conclusions. 1) The sediment deposition process is expanded with fan-shape. 2) The wandering frequency and amplitude both increase in large flow. 3) With the transformation of different river patterns, river regime also alternatively develops with law of stable, unstable and extremely unstable. 4) River is easy to change when the ratio of transverse and longitudinal gradient ratio is larger than two. Third, the paper has chosen the discriminated index of river transformation.

关键词： river patterns river simulation discriminated index

作者: Junhua Li Enhui Jiang Yang Zhang

作者单位: Yellow River Institute of Hydraulic Research, Zhengzhou 450003, ,China;HOHAI University,Nanjing 2100 Yellow River Institute of Hydraulic Research, Zhengzhou 450003,China

会议类型: 国际会议

会议名称: The 3rd Biennial ISRS Symposium Achieving Healthy and Viable Rivers (ISRS)第3届国际河流大会

会议地点: 北京

会议语种:英文

页码: 353-357

在线出版日期: 2013-08-05（万方平台首次上网日期，不代表论文的发表时间）